By measurement, I mean what I see on the magnitude graph in smaart when I am time aligning etc before shows. Not ideal measuring conditions but the system seems to roll off at about 40hz consistently when blocks of 4 or more subs are used.
I was about to report this! Found it last night. But I thought I'd check to see what the latest posts were.
Awesome bug swatting Spider McBean
The latest bug was inadvertently introduced with the release of Product Number 5050-191115 (changes detailed in Post #10172). I thought I had checked that everything in the Maximum SPL tool was working correctly after making the changes, but somehow I managed to overlook the most obvious check of all .
.Other Options?
Tried to place an order with Lean, guess they are too lean!
"We are sorry for the inconvenience; however, at the present time we are unable to use PayPal to process orders from the geographic region you selected as your PayPal address. Please continue using normal checkout and select from the available payment methods to complete your order."
How about selling through ASA and AES?
If you want to sell me direct, just send me a PayPal Invoice and bump the price to cover all your expenses. I would like a signed copy for my library.
Regards,
Bill
Really sorry to see the book arrive in such a beat-up condition
To be honest, I'm not sure if they do. We've had several returns/refunds due to Amazon's poor packaging. We're actually considering finding other retailers and stop selling through Amazon due to that.
The annoying thing is that since I sell the books through Fulfilment by Amazon, I have no control over packaging and shipping, and in addition all the refunds and returns go straight out of my pocket. Amazon has no loss from this.
I would recommend that people buy the book through Lean Business Audio instead (link on the info page in my signature). The shipping is a little more expensive, but it's faster than Amazon and I know it is well packed.
Tried to place an order with Lean, guess they are too lean!
"We are sorry for the inconvenience; however, at the present time we are unable to use PayPal to process orders from the geographic region you selected as your PayPal address. Please continue using normal checkout and select from the available payment methods to complete your order."
How about selling through ASA and AES?
If you want to sell me direct, just send me a PayPal Invoice and bump the price to cover all your expenses. I would like a signed copy for my library.
Regards,
Bill
Bill I sent Lean Business an email and they quickly sent over a PayPal invoice.
Just remember the time difference from wherever you are living and they are quite prompt.
I am planning on making a rear firing tweeter w horn.
I will be using this driver
DTW 72 - 8 Ohm | Visaton
Probably will try and 3D print it.
Question:
What kind of horn or wave guide is suitable for this? There is so many to choose from
I only need it from 10kHz onwards. High efficiency would be good as I need it to be relatively louder than the front side.
Not sure about dispersion, should I go for something really wide or something narrow?
Have you guys tried this on Hornresp? What is your conclusion?
I will be using this driver
DTW 72 - 8 Ohm | Visaton
Probably will try and 3D print it.
Question:
What kind of horn or wave guide is suitable for this? There is so many to choose from
I only need it from 10kHz onwards. High efficiency would be good as I need it to be relatively louder than the front side.
Not sure about dispersion, should I go for something really wide or something narrow?
Have you guys tried this on Hornresp? What is your conclusion?
Thanks
Hi Mark,
They responded promptly.
Placed order via their PayPal invoice.
I do not understand the single source marketing.
Why not ASA, AES, e-Bay and others as well?
Regards,
Bill
Hi Mark,
They responded promptly.
Placed order via their PayPal invoice.
I do not understand the single source marketing.
Why not ASA, AES, e-Bay and others as well?
Regards,
Bill
Slightly informed conjecture on my part:
The possible realities of a book like this are a small run size, limited options as to who will carry it. And most of all the time invested into this versus the payback. The time put into this book by the two authors is epic. Will they ever get paid back monetarily? Not a chance. So hopefully they can switch over to a vendor that actually cares about the book getting shipped without damages. It cannot be an inexpensive item to create. And every damaged one is a loss on the original expenditure. I know I will cherish mine for years to come.
If all this were true, there would be no market for compression drivers as well.
I suspect the size of the potential readership is much larger than you suppose.
Bill
Lets say that there are 1000 potential customers. and that the book costs $10 to print. Both numbers are off by quite a margin I'm guessing. Do the math on what ever number combination you think appropriate. Remember that the book is self published. I don't think that there is a huge profit at the current cost. And I's be shocked if the first printing cracked a few thousand. A book of this quality is not an inexpensive thing to produce.
The compression driver sentence has me puzzled. The market for compression drivers is the PA and pro sound clientele. They sell in the hundreds of thousands.
Tip of the market iceberg: AES alone has 12,000 members and 33,000 followers on LinkedIn.
Compression drivers need horns (designed for them) to become functional.
The delivered cost of the book I ordered was well over $200 (USD) which suggests the presence of an adequate profit margin.
This book will sell for years to come and expect to find it in most university libraries.
I am sure the authors did their homework regarding the business case for publishing the book, as evidenced by the hard cover only printing.
WHG
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Hi Brian,
That was done deliberately as a sanity check because I didn't think that any of the advanced parameter values should ever be zero
.I will allow Leb to be zero in the next release, but in the meantime just set the value to 0.01 mH. That will be close enough for all practical purposes.
Thanks for the feedback.
Kind regards,
David
Hi Bill,
Publishing this book, or its physical design, are not business decisions. One of the reasons we went for self publishing is that we wanted the book to be the way we envisioned it, with the content we wanted to include. Physically we wanted it to be more along the lines of the old classics than the modern style.
But self publishing also means you don't have the marketing force of a publisher, nor the contacts. And when you spend essentially every waking hour February-August finishing the contents, and find sales and marketing slightly less interesting than washing up, there isn't much time or energy left to make a massive effort to get the book into every possible relevant bookshop. Also after finishing a massive creative project like this, you just want to do something completely unrelated afterwards.
AES and ASA: we have checked.
AES sell only their own publications, except at conventions. We sold books at AES NY and will also have it in their book shop for the convention in Vienna next year.
ASA seems to only sell their own stuff, and books regarded as classics. A new book isn't a classic.
eBay? I don't want to go to the post office with a ton of books every other day. And shipping would be more expensive.
If you have any actual contacts that can help us get the book into other bookshops, please PM me. We're happy to sell through other channels, but we haven't had much luck so far.
Pretty much what I thought it was like.
Similar to the music industry. Play by their rules or you are shut out.
I bought my copy from lean business, the price is actually a bit less than normal for such a specialised book of such a large size. I am enjoying the unique style which is far less dry than most text books. So far my only disappointment has been the treatment of acoustic lenses which seems a bit brief and doesn't seem to take into account this data:
http://www.jblpro.com/pub/obsolete/Acoustic_Lens_Family1.pdf
which does show constant directivity behaviour
http://www.jblpro.com/pub/obsolete/Acoustic_Lens_Family1.pdf
which does show constant directivity behaviour
Glad you like it. I guess there will always be topics that are not covered in enough depth for some readers, though. Some will want more info on acoustic lenses, others will miss an in-depth discussion of scoop RLHs or some of the specialized horn designs that have appeared on this forum. In the next edition maybe... it takes quite a lot of effort to give a meaningful discussion of technology you haven't worked with. In some cases there is data, but the data has to be comparable to data of competing technologies if there is to be any point in discussing it.